Question

21. What is the circumference of the circular disc
of radius 14 cm​

Answer 1

Given:

Circumference of circle=$\sf{2\pi r}$

Radius=14cm

Solution:

Circumference of circle=

$\sf{2\times{\dfrac{22}{7}}\times 7}$

$\sf{\implies}{2\times 22} \\ {\implies}{44cm}$

Answer 2

Answer:

Circumference of circle=\sf{2\pi r}2πr

Radius=14cm

Solution:

Circumference of circle=

\sf{2\times{\dfrac{22}{7}}\times 7}2×

7

22

×7

\begin{gathered}\sf{\implies}{2\times 22} \\ {\implies}{44cm}\end{gathered}

⟹2×22

⟹44cm